A160356 First differences of Recamán's sequence A005132.

1, 2, 3, -4, 5, 6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, 18, 19, -20, 21, -22, -23, 24, -25, 26, -27, 28, -29, 30, -31, 32, 33, 34, -35, 36, -37, -38, 39, -40, 41, -42, 43, -44, 45, -46, 47, -48, 49, -50, 51, -52, 53, -54, 55, -56, 57, -58, 59, -60, 61, -62, 63

Offset

1,2

Links

Table of n, a(n) for n=1..63.

Formula

a(n) = A005132(n)-A005132(n-1) = n*A160357(n).

As a set, A160356 = A057165 union -A057166.

Crossrefs

Cf. A005132, A057165, A057166, A065056, A160357.

Sequence in context: A181983 A274922 A097141 * A001478 A001489 A038608

Adjacent sequences: A160353 A160354 A160355 * A160357 A160358 A160359

Keyword

sign

Author

M. F. Hasler, Jun 03 2009

Status

approved